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bike jerks real bad when hard on throttle......

  #1  
Old 10-11-2010, 12:07 AM
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Default bike jerks real bad when hard on throttle......

ok i got a 2002 f4i i just put a new swing arm on it i strecthed it out 8 inches.now the problem im havin is that when i get hard on the thottle the bike jerks to the left real hard...but when im on throttle easy i can ride all day...tryin to figure out if its the sprocket chain wheel or something someone please let me know..i put on a new chain and it still does it...........
 
  #2  
Old 10-11-2010, 12:39 AM
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check your alignment of the back wheel.
 
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Old 10-11-2010, 06:04 PM
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alignment is fine got them lined up the sam............but who knows
 
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Old 10-11-2010, 06:10 PM
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check your chain tension and rear cush as mentioned per this recent thread

https://cbrforum.com/forum/f4i-main-forum-11/off-throttle-jerk-117459/

specifically ...
Originally Posted by woot View Post
The other point of failure is the cush -- the black rubber wedges in the rear wheel assembly. They act as a cushion between the sprocket and wheel -- these can and do wear. If you're really worn you can actually get lash from them. You can either buy new ones, or I have heard of people putting in thin plastic wedges (cut from margerine containers) to fill up the void left by the worn away rubber. Your mileage may vary.

The other source of lash is from your right hand... but I digress
 
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